baber/WOPTO huggingface dataset:
Patent GB-393108-A (GB)
Title: Method of removing impurities from oils and fats
IPC: C11B3/00
Filed: 1932-07-19
Abstract: Oils and fats, e.g. linseed, peanut and train oils are purified by treatment with phosphoric acid and cellulose added together or in succession Treatment with adsorbents, e.g. kieselguhr or bleaching earth, and neutralization with gaseous, solid, or aqueous alkali, e.g. ammonia, ammonium carbonate, chalk or baryta may follow.  In an example, a soupy mixture of 0.1-0.5 lb. of cellulose with 0.1-0.8 lb. of phosphoric acid S.G. 1.55 is stirred into 100 lb. of linseed oil, and the temperature raised to 70 DEG  C., 1 lb. of fuller's earth, Bentonite, or kieselguhr is added, and after 30 min. 0.15-1.2 lb. of chalk; the mixture is filtered.  The purification of oils and fats by counter-current washing with alcohol acetone, or by treatment with coagulants, e.g. alum or tannin, or by concentrated phosphoric, hydrochloric, or sulphuric acid with or without adsorbents, e.g carbon or china clay or other bleaching earth, and the bleaching of oils by mixtures of cellulose and acids are referred to.  Reference has been directed by the Comptroller to Specification 341,390,
Patent GB-1329335-A (GB)
Title: Production of o-benzoylbenzoic acid
IPC: C07C51/31
Filed: 1971-04-19
Abstract: 1329335 o-Benzoylbenzoic acid BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [28 Jan 1970 12 June 1970 13 June 1970] 20475/71 Heading C2C o-Benzoylbenzoic acid is prepared by the oxidation of an indane of the general formula in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be the same. or different, each denote an alkyl radical and R<SP>1</SP> and/or R<SP>3</SP> may also denote a hydrogen atom, using nitrogen dioxide, as oxidizing agent, in the presence of selenium dioxide. The o-benzoylbenzoic acid may be cyclized to form anthraquinone.
Patent GB-764973-A (GB)
Title: Roof construction and device
Inventor: ROSSINI LAURENCE
IPC: E04D13/16
Filed: 1954-07-14
Abstract: 764,973. Roofs. PARAMOUNT ASPHALTE & FLOORING CO., Ltd. July 14, 1955 [July 14, 1954], No. 20607/54. Class 20(4) A roof ventilator for use on roof structures having a surface coating layer of impervious material to protect against weather, comprises a vent pipe, which extends through the coating layer, having at its outer end means to prevent direct ingress of snow and rain and which on its inner end, opens into a tent-like metal structure serving to anchor the ventilator to the coating layer and as an air and moisture collecting chamber access to which is through one or more openings in the sides thereof. As shown in Fig. 2, a load bearing surface such as concrete C is covered by a heat-insulating layer D of vermiculite, foam-slag or the like and a top layer A of asphalt or bitumen felt. The ventilator comprises a pipe K bent at its outer end L to prevent ingress of snow or rain, and opening into a funnel M having a serrated edge P to provide openings for the air or moisture. A shield F prevents ingress of water between the pipe K and the top layer A. A number of vents will normally be used, along the highest part of the roof. For roofs sloping down from one end, the pipe K similarly shaped and positioned as in Fig. 2, opens according to Fig. 3 (not shown) into a triangular sectioned metal plate to be positioned up against the end wall. As shown in Fig. 4, the'pipe K is carried by one side S of a plate having side plates S<SP>1</SP> S<SP>2</SP> forming a tent-structure, the plates S<SP>1</SP>, S<SP>2</SP> having edge fillets T by which they may be secured to a flat surface.
Patent GB-597141-A (GB)
Title: Improvements in or relating to refrigeration
IPC: F25B15/04
Filed: 1945-08-10
Abstract: 597,141. Refrigerating. BERNAT, R., and BERNAT, H. Aug. 10, 1945, Nos. 20630 and 20631. Convention dates, Sept. 8, 1943, and Oct. 22, 1943. [Class 29] Absorption systems.-In a continuous system absorption takes place in two successive stages, first in a low-pressure absorber 11 in which the pressure is equal to that in the evaporator, and then in a high pressure absorber 15 to which the undissolved gas and the liquor from the absorber 11 are forced by a compressor 14 and a pump 13 respectively. Two boilers 2, 4, are employed, the boiler 4 being heated to a higher temperature than the boiler 2 by steam supplied at 46 to a coil 5. From the coil 5 the steam passes through a valve 43 to a coil 1 in the boiler 2, being mixed at 48 with exhaust gases from an engine, supplied through a pipe 44. Weak liquor from the boiler 2 passes by a pipe 30 to the boiler 4 where more ammonia is driven off and passes by a pipe 20 to a rectifier 3 in the upper part of the boiler 2 and thence to a further rectifier 6 cooled by strong liquor from the absorbers. Liquid separated in the rectifier 6 returns to the boiler 2 by a pipe 42. From the rectifier 6 the ammonia vapour passes to a condenser 7, the liquid ammonia collecting in a vessel 8 whence it passes to a subcooler 9 and the evaporator 10. The vapour from the evaporator passes through the sub-cooler 9 and by a pipe 28 to the first absorber 11 supplied with weak liquor from the boiler 4 through pipe 31, liquid heat-exchanger 17 and pipe 32. The liquid and vapour from the first absorber are separated in a vessel 12 and are forced by pump 13 and compressor 14 respectively into the second absorber 15. A pump 16 delivers the strong liquor from the second absorber through a pipe 39 to the rectifier 6 and thence by pipe 40, liquid heat exchanger 17 and pipe 41 to the boiler 2. Valves 26, 33 regulate the flow. The boilers may comprise horizontal double-walled tubes the annular space of which is supplied with the steam and exhaust gases, and separating chambers may be provided for the ammonia and weak liquors.
Patent GB-1176420-A (GB)
Title: Horizontal-Operation Hydropneumatic Spring
IPC: B61F5/10
Filed: 1967-05-03
Abstract: 1,176,420. Hydropneumatic shock absorbers. MAGYAR VAGON-ES GEPGYAR. 3 May, 1967 [31 May, 1966], No. 20655/67. Heading F2S. Hydropneumatic spring means for horizontal operation comprises a hollow piston 3 having in its interior an elastic box filled with compressible gaseous medium 7. Movement of the piston 3 to the right, due to external loading, causes liquid from its cylinder 2, space 22, to flow to the interior of the piston through ports 17, compressing the gaseous medium 7. A piston 4 coupled to the piston 3, during such movement covers the port 26 in its cylinder and liquid is forced through a one-way valve 10 and channel 19 into the space 22. Removal of the external load allows expansion of the gaseous medium, tending to restore the piston 3 to its initial position, causing liquid to be sucked through a flap valve 12 from the trimming tank 1 and continued movement of the piston 3 causes piston 4 to lift the spring- loaded valve 5 to uncover parts connecting the spaces 21 and 22. The trimming tank 1 has an air tank 14.
Patent GB-315995-A (GB)
Title: Improvements in or relating to labelling machines
IPC: B65C3/10
Filed: 1928-07-17
Abstract: 315,995. Thompson, M. P. July 17, 1928. Sheet-separators, pile supports.- In a bottle &c. labelling-machine the bottom label in a pile is detached by a pair of reciprocating gum boxes. To give stability to the pile, carried by depending hooked arms 108, during the gumming operations, a weight 111 is provided above which is a rod 112 sliding freely through a sleeve 113, and during the gumming operation the rod 112 is held rigid by a pivoted brake shoe 118 operated by an arm 120 engaged by a reciprocating member 147 actuated simultaneously with the reciprocating gum boxes.
Patent GB-304998-A (GB)
Title: Improvements in or relating to tents
IPC: E04H15/06
Filed: 1928-07-17
Abstract: 304,998. Maclean, A. P. July 17, 1928. Tents.-A tent covering is supported on a frame fixed to a motor car, so as to envelop the vehicle and leave ample space around it. The covering 1 is supported on a tripod 3 which is carried in sockets 7 secured in the roof of the car by pintles 6, the rods of the tripod being hinged to the pintles and to the head 4. The covering is further supported by adjustable rods 15 extending outwardly and upwardly and supported from sockets in the running boards of the car, the ends 14 of the rods passing through eyeletted apertures in the covering and side screens, weather hoods 17 being fitted over the apertures, Fig. 5. The rods 15 may be simply hinged to pintles 6 or may be provided with detachable hinged connections by means of a cylindrical rod 27 on one part engaging a bayonet slot 29 in a sleeve fixed to the other part, Fig. 7. The rods may be automatically telescopic under spring action or may be adjustable by means of screw and nut gearing. Alternatively, the apex 4 of the tripod may be screw adjustable in a ball and socket connection 43, 44, Fig. 19, or in a rotatable connection 43<a>, Fig. 24, or in a gimbal bearing 43<a>, Fig. 22. The tent may be. provided with a ridge pole and can be of any polygonal section.
Patent GB-720633-A (GB)
Title: Movement for timepieces with centre seconds hand
IPC: G04B33/10
Filed: 1952-08-18
Abstract: 720,633. Clocks and watches. ETA SOC. ANON. FABRIQUE D'EBAUCHES. Aug. 18, 1952, [Aug. 23, 1951,] No. 20757/52. Class 139. A time-piece movement comprises a fourth wheel spindle in the centre of the movement, a cannon pinion surrounding said fourth wheel spindle, a centre wheel on said cannon pinion but not in the train between the barrel and the escape wheel. The barrel 4, Fig. 1, drives the train comprising the second wheel pinion 3, the second wheel 5, the third wheel pinion 6, the third wheel 7, the fourth wheel pinion 8 and the fourth wheel 9. The spindle of the fourth wheel 9 is in the centre of the movement and passes through a pipe 10 fixed to the plate 1. The third wheel pinion 6 drives a centre wheel 14 frictionally mounted on the cannon 11 of the cannon pinion 15 which drives the minute wheel 13, the pinion of which drives the hour wheel 12 free on the cannon 11. In another example, Fig. 3 (not shown), the wheel 14 is located at a level between the minute wheel 13 and the hour wheel 12. In another example, Fig. 4, the wheel 14 is fixed on the cannon 11 and is driven by a pinion 16 frictionally mounted on the third wheel spindle.
Patent GB-1041842-A (GB)
Title: Turbo-chargers for use with internal combustion engines
Inventor: KELLETT ERIC
IPC: F01D17/10
Filed: 1963-05-24
Abstract: 1,041,842. Exhaust driven compressors for I.C. engines; gas turbine plant. C. A. V. Ltd. May 25, 1964 [May 24, 1963], No. 20768/63. Headings FIB and FIG. The exhaust driven turbine 2 of a turbocharger is provided with a by-pass passage 7 within the turbine casing connecting the turbine inlet 5 to the outlet 6, the by-pass being controlled by a valve 9 actuated by a device 10 responsive to the outlet pressure of the compressor. The by-pass passage is formed by an angularly spaced set of passages 7.
Patent GB-1099905-A (GB)
Title: Improvements in rectilinear motion mechanisms
IPC: B21F27/10
Filed: 1965-05-17
Abstract: 1,099,905. Welding by pressure. EVG ENTWICKLUNGS-U VERWERTUNGS G.m.b.H. May 17, 1965 [July 8, 1964], No. 20800/65. Heading B3R. [Also in Division F2] In a straight line motion mechanism for an automatic metal mesh welding machine. a lever 1 is pivoted about a stationary axis A, a lever 2 is pivoted to the lever 1 at B, and a belt, cable or chain 5 extends around a stationary pulley or sprocket wheel 3 co-axial with the axis A and a pulley or sprocket wheel 4 fast with the lever 2, the length of the lever 2 being equal to the length AB of the lever 1 and the effective diameter of the wheel 3 being twice that of the wheel 4 so that when the lever 1 is moved through a given angle the lever 2 moves in the opposite sense through twice this angle relatively to the lever 1 and the free end C of the lever 2 moves along a straight line. The lever 1 is moved by a cam 12 having a follower B which is mounted on a spring-loaded lever 7 connected by a rod 6 to the end E of the lever 1. Two of the above mechanisms actuated by a common lever 7 feed two cross wires Q 1 , Q 2  simultaneously to welding electrodes 9, 9<SP>1</SP>. In the idle position (Fig. 1, not shown), the cross wires rest in stationary supports 10 one behind the other in the direction of feed of the longitudinal wires. In operation, the cross wires are placed in spring clips (Fig. 3, not shown) on the ends C, C<SP>1</SP> of the levers 1, 1<SP>1</SP> by a feed lever 11 and are carried across the longitudinal wires to the welding electrodes. On return movement of the ends C, C<SP>1</SP>, the cross wires, now welded to the longitudinal wires, pass out of the spring clips. To change the mesh pitch of the cross wires, the lengths AE, AE<SP>1</SP> of the levers 1, 1<SP>1</SP> may be adjusted, for which purpose the lever ends E, E<SP>1</SP> of said arm extensions may be arcuately slotted (Fig. 4, not shown); further, the lengths of the rods 6, 6<SP>1</SP> may be adjusted, as by turn buckles, and the cam 12 may be changed.
Patent GB-573491-A (GB)
Title: Improved detachable spade lugs for steel wheels as used on agricultural tractors
IPC: B60B15/00
Filed: 1944-10-26
Abstract: 573,491. Vehicle wheels. BERRY, B. Oct. 26, 1944, No. 20838. [Class 144 (i)] Detachable strakes for tractor wheels are formed in two similar portions 1 adapted, as by claws 7, to engage the edges of the rim 8 to which they are clamped by transverse bolts 3. A thin rubber liner 9 is vulcanized to the rimseating portions of the strake.
Patent GB-460425-A (GB)
Title: Improvements in gudgeon pin bearings
IPC: F16J1/16
Filed: 1936-07-28
Abstract: 460,425. Rolling friction bearings. ZEISSL, I. July 28, 1936, No. 20859. [Class 12 (i)] [Also in Group XXVI] The compressive force of the connecting-rod is transmitted to the gudgeon pin a by a roller c which is mounted in a recess in the connecting rod and passes through a gap in the gudgeon pin bushing b. The base of the roller is mounted on a pad f which can be adjusted by shims g. In_ a modification, two such rollers are mounted side-by-side. In another modification, the rollers are made completely circular in crosssection.
Patent GB-402536-A (GB)
Title: Improvements in or relating to carpenters' and like braces
IPC: B23B31/12
Filed: 1932-07-26
Abstract: 402,536. Chucks. MELDRUM, M., 81, Roe Lane, Pitsmoor, Sheffield. July 26, 1932, Nos. 21033 and 21985. [Class 83 (iii).] In a chuck for a carpenter's &c. brace, the jaws 17 are attached to springs 18 secured to a carrier block 16 which is of rectangular or other non-circular section and is received within a slot 15 of the brace 12. A recess 20 is provided in the block 16 of a cross-section to fit the tang of the tool being held so as to drive and centre the tool, and a projection 22 on the block centres it within the brace 12. If the block 16 is rectangular in section the springs 18 on the shorter sides of the block are bowed outwards as shown whilst the remaining springs are straight so as to make the jaws concentric with the chuck. Two jaws only may be provided, or three jaws secured to a triangular block. The springs 18 are attached to the jaws and block by rivets 19 and may be recessed into slots in the sides of the block or in the slot 15. When two jaws only are provided they may have interengaging teeth of the "alligator" pattern or may be otherwise toothed, particularly for use with tools having a round shank. According to one Provisional Specification, the four springs 18 may be secured to two opposite side faces of the block, the two on one face being bent to helices of opposite hand so as to centralise the jaws.
Patent GB-871740-A (GB)
Title: Gas-filled luminous electric discharge tubes
IPC: H01J61/35
Filed: 1957-07-03
Abstract: 871,740. Optical systems. CENTRE NATIONAL DE LA RECHERCHE SCIENTIF1QUE. July 3, 1957 [July 5, 1956], No. 21086/57. Class 97(1) [Also in Group XL(a)] Fig. 10 shows a flash discharge tube 41 having a silver or aluminium coating with two or more uncoated light apertures 42, 43. A preliminary illumination of an object, without the discharge, can be effected by light passing from at least one incandescent lamp 44 through the optical condenser system 45 and the light aperture 43 and thence by multiple reflection through the tube 41 and out of the light aperture 42. Fig. 11 shows a metal-coated U-shaped flash discharge tube 46 having uncoated light apertures at 48, 49 and 50. A preliminary illumination of the object can be effected by light passing from at least one incandescent lamp 47 through the light apertures 48 and 49 and thence by multiple reflection through the tube 46 and out of the light aperture 50.
Patent GB-140142-A (GB)
Title: Improvements in or relating to gyroscopic tops
IPC: G01C19/44
Filed: 1918-12-17
Abstract: 140,142. Bonneau, E. E. J. Dec. 17, 1918. Gyroscopic apparatus.-A gyroscopic top is formed with a spherical pivot c, the centre of which coincides with the centre of gravity of the top and which rotates on a bearing having a radius of curvature greater than the radius of the sphere of the pivot. The body of the top may be formed with its external surface concentric with the pivot sphere. A pointer g in prolongation of the axis may be used to indicate inclinations on a transparent cap f closing the casing e. The equatorial line a<2> of the top may be observed through a transparent pane h in the casing carrying a line i. A plane mirror may be provided on the upper surface of the top. The top may be driven by means of air-jets entering through apertures l, the interior of the casing being connected to an exhausting means such as a Venturi tube. In an application to stabilizing aeroplanes, the top is formed with insulated metal sectors co-operating with metallic brushes forming part of circuits controlling motors for maintaining the spherical casing carrying the brushes in a fixed position relative to the top. The aeroplane-controlling means are operated from the casing.
Patent GB-636961-A (GB)
Title: Improvements relating to valves
IPC: F16K11/04
Filed: 1947-08-05
Abstract: 636,961. Valves. MACKENZIE, K. O. Aug. 5, 1947, No. 21157. [Class 135] A reversing valve comprises a body 1 with an inlet 4 and outlets 5, 6, and two pairs of valve seats 11, 12, the seats 11 having exhaust ports and being larger than the seats 12, and a shuttle valve member 7 coacting with one seat of each pair in either of its end positions in which fluid pressure holds the member seated. When the member is raised from its seat at one end of its stroke by a piston 13, the fluid-pressure acting on the member moves it to the other end of its stroke. The piston is actuated by the controlled fluid through a slide-valve 21 which is oscillated by a lever 23. A reducing valve may be connected to the inlet 26, and if a liquid is being controlled, exhaust conduits may be attached to the seats 11.
Patent GB-891895-A (GB)
Title: Signalling systems
IPC: G04C23/08
Filed: 1959-06-19
Abstract: 891,895. Timed control of electric circuits. COBEN, C. A. June 9, 1960 [June 19, 1959], No. 21191/59. Class 118. A clock mechanism drives a chart element at a constant speed, and marks constituted by deformations in the chart element operate a sensing device which causes generation of a signal, the apparatus including a marker for applying the marks to the chart element at positions corresponding to predetermined points in the time cycle of the clock mechanism. As shown, a synchronous electric motor 1 drives clock hands 3 and, through a sprocket 6, an endless band 7 having notches 13 in one edge. These notches cause a sensing arm 16 to operate a microswitch 14 at predetermined times. The notches 13 may be made by a punch 11 which engages the band 7 at the same point as the sensing arm 16.
Patent GB-1248278-A (GB)
Title: Improvements in or relating to nut runners
IPC: B25B21/00
Filed: 1969-04-25
Abstract: 1,248,278. Nut runners. PRESSLUFT WERKZEUG UND MASCHINENBAU "PREMAG" G.m.b.H. 25 April, 1969 [2 May, 1968] No. 21193/69. Heading B3N. [Also in Division F2] A nut runner comprises a shaft 19, connected to a reversible pneumatic vane motor 4 by a coupling 22, a driven shaft 20, adapted to be driven by shaft 19 through a one-way clutch 45, and driven in the same direction when the direction of rotation of shaft 19 is reversed, via a planet wheel 28, a sun wheel 29, and a one-way clutch 46, and cam means 47, 48 adapted to terminate rotation of shaft 20 after a predetermined angular movement of shaft 19 in the reverse direction. A tool-supporting shaft 14 is axially displaceable against the action of a spring 15, and shaft 20 is urged in one direction by a torsion spring 54. Planet wheel 28 meshes with a pinion 24 formed on shaft 19, and the latter rotates in a planet cage 25, and is formed in two parts connected by a pin 56, and a toothed clutch 57, 58. Cam 47 is formed on sunwheel 29, cam 48 is adjustably secured on the sun-wheel by a screw 49, and both cams are adapted to abut a stop 53, which projects through a passage 50 in the tool casing 1. In operation, a nut is tightened by driving shaft 20 from the motor, through shaft 19 and one way clutch 46, until the resistance stops the motor. The direction of rotation of motor 4 is reversed, a one way clutch 44 prevents rotation of cage 25, planet wheel 28 drives sun gear 29, which drives shaft 20 in the same direction as before through one way clutch 45. The tool continues to rotate the nut until cam 48 abuts stop 53. The planetary gear train may be replaced by an intermediate gear.
Patent GB-997596-A (GB)
Title: An assembly including a nut device secured to an apertured support
Inventor: PARKIN LESLIE
IPC: F16B37/04
Filed: 1962-06-01
Abstract: 997,596. Securing nuts to work. CARR FASTENER CO. Ltd. March 11, 1963 [June 1, 1962], No. 21307/62. Heading F2H. A nut 12 is held on a face of a support 8 by resilient tongues 5, 6 on arms 3, 4 inserted through a hole 9 when the base 1 of an anchoring clip bearing the arms is presented to the opposite face of the support. Instead of notches 11 in the flange 10 of the nut, there may be slots, Fig. 5 (not shown), in which case the clip has tongues turned outwards from its arms instead of inwards as shown.
Patent GB-680590-A (GB)
Title: Improvements in the manufacture of multiple welding electrodes
IPC: B23K35/02
Filed: 1950-08-30
Abstract: 680,590. Welding by fusion. SOUDURE AUTOGENE FRANCAISE. Aug. 30, 1950 [Sept. 1, 1949], No. 21438/50. Class 83 (iv). Assembled coated wires forming a multiple welding electrode are stuck together by an inorganic based adhesive used alone and applied over the coatings. The adhesive may be an alkaline ortho-silicate in colloidal solution, potassium for A.C. and sodium for D.C. Material the same as that. of the coating may be mixed in powdered form with the adhesive or a material to effect the slag or weld characteristics may be employed. Electrodes of different compositions may be used in the bundle. The adhesive may be applied by brushing, dipping, &c. all over the electrodes or in spaced spots. At the end of the electrodes held in a holder, the adhesive mixed with the powdered coating material may be applied; the adhesive for the remainder of the bundle being used alone.
Patent GB-695522-A (GB)
Title: Non-woven fabrics
IPC: A61F13/00
Filed: 1951-09-12
Abstract: 695,522. Compound sheet materials. PERSONAL PRODUCTS CORPORATION. Sept. 12, 1951. [Sept. 16, 1950] No. 21478/51. Drawings to Specification. Class 140. [Also in Group IX]. A compound sheet material comprises a relatively heavy layer of a non-woven fibre web and a relatively light layer of paper tissue united by the use of heat and high pressure applied along narrow lines spaced apart by a distance less than the mean length of the individual fibres.